Genetics Answers

Hypoplasia of enamel (thin, granular enamel, light brown teeth) is inherited as a dominant trait

linked to the X chromosome. A son with normal teeth was born in a family where both parents

suffered from the noted anomaly. Determine the likelihood that the next child will have normal

teeth.

Describe Gonadal sex determination and accessory determination sex in humans

Differentiate plant reproduction from animal reproduction. Present your answer in a tabular form.

imagine you have just purchased a black rabbit of unknown genotype.you mate it to a white one and she delivery twins one black and one white ... illustrate this cross with suitable cross diagram

what is mendelian principle

describe how gene expression is regulated ?

Muning and Peping has a kitten but their kitten color is BLACK. If Muning is a heterozygous white (Bb) and Peping is a homozygous black(bb). Create a Punnett square using B for the dominant gene (white) and b for the recessive one (black).

5) Phenotype:

6) Genotype:

7) Phenotypic Ratio:

8) Genotypic Ratio:

1) Patrick and his partner Patricia recently had Lil Patty and Patricia is worried that the hospital made a mistake and mixed her baby with some other starfishes. Lif Patty has a SMALL HEAD! Patrick is heterozygous for his tall head and Patricia is heterozygous for her tall head. Create a Punnett square using H for the dominant gene and h for the recessive one.

1) Phenotype:

2) Genotype:

3) Phenotypic Ratio:

4) Genotypic Ratio:

The common housefly has a haploid number of 6 consisting of 3 long chromosomes (one metacentric, one acrocentric, and one telocentric); 3 short chromosomes (one metacentric, one acrocentric, and one telocentric). Draw and label a typical housefly primary spermatocyte in Metaphase I and spermatozoa at Telophase II.   

If the quantity of DNA in a cell at G1 of the cell cycle is 5 picograms. What will the quantity of DNA in that cell be at G2 phase of the cell cycle? Give a reason